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Re: is "db/revs" always going to be one flat directory (FSFS)?

From: Holger Hoffstaette <holger_at_wizards.de>
Date: 2004-11-30 12:17:36 CET

On Mon, 29 Nov 2004 13:19:37 -0600, kfoge wrote:

> Greg Hudson (I believe) tested at least EXT3 up to hundreds of thousands
> of revisions, and saw no performance decrease.

Unfortunately this does not address the really important question, which
is "did he use directory indexing", i.e. was the partition mounted &
optimized with the dir_index option?

I don't think recommending razorfs is going to be very popular. Also it
doesn't address Windows (NTFS) at all.

> Now, possibly that test was skewed, because the inodes would have ended up
> right near each other, because the test was being run all at once --

Many factors come into account. Even just using ls on the big directory is
pretty much wrong because it tries to sort all files before printing them;
in contrast find|xargs often works just fine.

Not to rain on anybody's parade - I have completely replaced bdb with fsfs
everywhere with great success - but putting everything into 1 directory
was quite shortsighted, IMHO. :(


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Received on Tue Nov 30 12:37:45 2004

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